1、密度小，仅为铁的1/8，因此，pvc矿用管重量轻有益于煤矿井下搬运，降低工人劳动量，提高工作效率；2、耐化学腐蚀好，因此，不生锈、不需要防腐处理；3、电绝缘性能优良，不需要焊接，有益于煤矿井下的安全；4、耐磨性好，不产生水垢，使用寿命长；5、铺设施工方便，遇突发事件，易于排险；6、价格相对便宜，综合经济效益好，符合国家以塑代钢、以塑代木的产业发展方向。所以，用塑料管材替代金属管材是今后煤矿井下用管材的发展方向。

1, the density is small, only iron 1/8, therefore, PVC tube light is beneficial to mine coal mine transportation, reduce labor, improve work efficiency; 2, good resistance to chemical corrosion, therefore, does not rust, does not need the antiseptic treatment; 3, excellent electrical insulation properties, without welding, beneficial to the coal mine mine safety; 4, good wear resistance, no scale, long service life; 5, the laying of the construction is convenient, in case of emergencies, and easy; 6, the price is relatively cheap, good economic efficiency, in order to meet the national plastic to replace steel or wood on behalf of the development direction of the industry. Therefore, replacing metal pipes with plastic pipes is the direction for the development of underground pipes used in coal mines in the future.